Home / 11,319.68-15,620.40-6,283.65

Finding the Fourth Proportional to 11,319.68, 15,620.40 and 6,283.65

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Solution

The fourth proportional to 11,319.68, 15,620.40 and 6,283.65 is: 8,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.68 : 15,620.40 = 6,283.65 : x
  2. Step 2: Convert to fraction form
    11,319.68/15,620.40 = 6,283.65/x
  3. Step 3: Cross multiply
    11,319.68x = 15,620.40 × 6,283.65
  4. Step 4: Simplify right side
    11,319.68x = 98,153,126.46
  5. Step 5: Solve for x
    x = 98,153,126.46/11,319.68
  6. Step 6: Final answer
    x = 8,671.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.